Wrench



H u. SEITZMAN.

WRENCH,

APPLICATION FILED AUG-5. 1919- Patented Dec. 16,1919.

mvmron Herma 5 D. sefizmap .4 TTORNEYS HERMAN n. SEITZMAN, or BROOKIiYN,ivnw YORK.

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Specification of Letters Patent.

Application filed August 5, 1919. Serial No. 315,506.

To all whom it may concern:

Be it known that I, HERMAN D. Snrrz- MAN, a citizen of the UnitedStates, and a which may be used in connection with any.

form or shape of nut, bolt head, orpipe,

- and which will eificiently perform its functions in all uses.

A further object is to provide a wrench which will be extremely simplein construction, which can be manufactured at a reasonably low price,which is not liable to get out of order, and which will be extremelystrong and durable in use.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangement of partsas will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings, Figure 1 is a view in side elevationpartly in section illustrating one form of my invention.

Fig. 2 is an edge view at right angles to Fig. 1.

Fig. 3 is a fragmentary view of the opposite edge of the wrench shown inFig. 1.

Fig. 4 is a fra mentary view showing the opposite side of the jaws shownin Fig. 1.

Fig. 5 is a view in transverse section on the line 55 of Fig; 1.

Fig. 6 is a perspective view of the split collar 12.

Fig. 7 is a fragmentary view in side elevation illustrating amodification of my inven tion in which the jaws are to be used for en--gaging apipe.

Fig. 8 1s a fragmentary view in section on the line 8-8 of Fig. 7

1 represents a handle rod having a fixed jaw 2 at one end and milledhand hold 3 at its other end. The hand hold end 3 is provided with asocket 4 adapted to receive the shank 5 of any approved tool, and may beutilized with various tools as will be readily understood. The rod 1 hasflat sides '6 and is screw threaded throughout a portion of its lengthas shown at 7 8 represents a movable jaw which is 'made with an integralboss 9 movable on therod 1 and having flat faces 10 located against theflat sides 6 of the rod, so that while the jaw is free to movelongitudinally of the rod, it is held against the possibility of turningmovement thereon. v

An adjusting sleeve 11 is positioned on the rod 1 and has internal screwthreads 11 engaging the screw threads 7 so that the turning movement ofthe sleeve causes the same to move longitudinal of the rod.

A split collar 12 is secured tothe sleeve 11 by means of screws 13, andhas an inwardly projecting annular flange 15 which engages an annularflange 16 on the-boss 9, the flange 15 cooperating with the end ofsleeve 11 to compel the jaw 8 to move longitudinally when the sleeve 11is turned.

Th'e'jaws 2 and 8 are located at right angles to the rod 1 and projectbeyondboth sides thereof. These jaws are provided" with a plurality ofpairs of opposed angular recesses 16,17, 18, and 19 in the'sides andends of the jaws 2 and 8 and these pairs of recesses are of differentangular formations to accommodate any ordinary angular nut or bolt headin common'use. I

In the modification illustrated in Figs. 7 and 8, the fixed jaw 20 andmovable jaw 21 are made with toothed recesses 22 and 23 respectively toengage a pipe. Thus this form of my invention constitutes a pipe wrench.The toothed recess 23 of the mov-.

able jaw 21 is provided in a movable portion 21 of the jaw, this movableportion 21 having a perforated car 2 1 located between a pair ofperforated ears 25 on the boss 30 and pivotally connected by means of apin 26. The car 24 has a beveled shoulder 27 which limits its pivotalmovement and a spring 281s secured by a screw 29 to the boss 30, andholds the movable jaw 21 in normal position.

This pivotal movement of the portion 21 Patented Dec. 16, 1919.

of jaw 21 permits the wrench to be released from the pipe in itsmovement in one direction as is necessary with devices of thischaracter.

The split collar 12 above referred to is preferably split at an angle asshown clearly in Fig. 6, which gives to the device an added strengthover an ordinary straight split collar to sustain the strains andstresses of the movable jaw.

The two halves of the split collar can, of course, be inserted fromopposite sides to permit a quick connection of the sleeve with the jaw,and the angularly disposed contacting surfaces sustain longitudinalstrains when the sleeve is forced in one direction to press the jawsinto operative position. They also sustain the strain in the oppositedirection during the manipulation of the jaws.

While I have illustrated what I believe to be preferred embodiments ofmy invention, I would have it understood that I do not limit myself tothe precise detail set forth, but consider myself at liberty to makesuch changes and alterations as fairly fall within the spirit and scopeof the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. A wrench, comprising a handle rod having a fixed jaw. at one end,said rod having a screw threaded portion, a movable jaw mounted to moveon the rod and held against rotary movement thereon, a boss on themovable jaw, an annular flange on the boss, a screw threaded sleeveengaging the rod, a split collar having its members socured to thesleeve, and an internal annuiar flange on the split collar engaging overthe flange of the movable jaw.

2. A wrench of the character described, comprising a handle rod, a fixedaw on one end of the rod, said rod having a screw threaded portion andhaving fiat sides, a movable jaw having a boss thereon, said bossreceiving the rod and having fiat faces engaging the fiat sides of therod, an adjusting sleeve having internal screw threads engaging thethreads of the rod, a split collar secured to the sleeve and engagingthe boss whereby the movable jaw is compelled to move on the rod whenthe sleeve is turned.

3. A wrench, comprising a handle rod having fiat sides, a fixed jaw onone end of the rod,-a movable jaw, a boss on the movable jaw receivingthe rod, said boss and rod having flat faces whereby the jaw is heldagainst rotary movement on the rod, an annular flange on the boss, asleeve, said sleeve and rod having a screw threaded engagement, a splitcollar secured to the sleeve, and an internal annular flange on thecollar engaging over the flange of the jaw whereby the movable jaw iscompelled to move longitudinally of the rod when the sleeve is turned.

4:. A wrench, comprising a handle red, a fixed jaw on one end of therod, a movable jaw on the rod, means for preventing rotary movement ofthe movable jaw on the rod, an adjusting sleeve on the rod, said sleeveand rod having a screw threaded engagement, at diagonally split collarconnecting the sleeve and movable jaw, said jaws projecting on bothsides of the rod and having in their ends and sides pairs of opposedangular recesses.

5. A wrench, comprising a handle rod, fixed jaw on the rod, a movablejaw on the rod, an adjusting sleeve having screw threaded connectionwith the rod, a diagonally split collar connecting the sleeve and themovable jaw, a pivotally supported section on the movable jaw having alimited movement relative to the jaw, a spring holding said movablesection in one position, and said movable section and fixed jaw havingopposed toothed pipe receiving recesses.

HERMAN D. SEITZMAN.

